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CH239343A - Process for the preparation of a new polyazo dye. - Google Patents

Process for the preparation of a new polyazo dye.

Info

Publication number
CH239343A
CH239343A CH239343DA CH239343A CH 239343 A CH239343 A CH 239343A CH 239343D A CH239343D A CH 239343DA CH 239343 A CH239343 A CH 239343A
Authority
CH
Switzerland
Prior art keywords
hol
amino
new
carboxylic acid
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
Original Assignee
Ciba Geigy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ciba Geigy filed Critical Ciba Geigy
Publication of CH239343A publication Critical patent/CH239343A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
    • C09B43/136—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents
    • C09B43/16—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents linking amino-azo or cyanuric acid residues

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Zusatzpatent zum Hauptpatent Nr. 237397.    Verfahren zur Herstellung eines neuen     Polyazofarbstoffes.       Es wurde gefunden, dass man einen neuen       Polyazofarbstoff    erhält, wenn man 1 Hol     di-          a.zotierte        1-Amino-4,6-dichlorbenzol-2-carbon-          säure,    1 Hol     2-Amino-5-oxynaphthalin-7-sul-          fonsäure,    1 Hol     Cyanurchlorid    und 2 Hol     4-          Amino        -4'-oxy    - 1,

  1'-     azobenzol    - 3'-     carbonsäure     derart aufeinander einwirken lässt, dass die       Diazoverbindung    in  & Stellung des Naphtha  linkerns eingreift, und das     Cyanurchlorid    die       A.minogruppe    des     Naphthalinderivates    und  diejenigen der beiden     Aminoazofarbstoffe     unter Bildung eines     ternären        Triazinkonden-          sationsproduktes    vereinigt.  



  Der neue Farbstoff stellt ein     dunkel-          btuunes    Pulver dar und färbt Baumwolle in  sehwach alkalischem Bade, das mit einer  Kupfersalzlösung aus Kupfersulfat und wein  saurem Natrium versetzt wurde, in wasch  und lichtechten     orangebraunen    Tönen an.  



  <I>Beispiel:</I>  20,6 Gewichtsteile     1-Amino-4,6-dichlor-          benzol-2-carbonsäure    werden in 200 Gewichts  teilen Wasser auf 40  erwärmt, 27 Gewichts-    teile konzentrierte Salzsäure zugegeben, mit  Eis auf 5  gekühlt und mit 6,9 Gewichtsteilen       Natriumnitrit        diazotiert.    Die klare     Diazo-          lösung    wird mit $2,1 Gewichtsteilen des in  bekannter Weise hergestellten     Triazinpro-          duktes    aus 1 Hol     Cyanurchlorid,    1 Hol     2-          Amino-    5 -     oxynaphthalin-7-sulfonsäure,

      und  2 Hol     4-Amino-4'-oxy-1,1'-azobenzol-3'-car-          bonsäure,    das in 1200 Teilen Wasser unter  Zusatz von 60 Gewichtsteilen     Natriumcarbo-          riat    gelöst wurde, gekuppelt. Man rührt einige  Stunden und fällt den gebildeten Farbstoff  mit Kochsalz.



  Additional patent to main patent No. 237397. Process for the production of a new polyazo dye. It has been found that a new polyazo dye is obtained if 1 hol of di- a.zotierte 1-amino-4,6-dichlorobenzene-2-carboxylic acid, 1 hol of 2-amino-5-oxynaphthalene-7-sul- fonsäure, 1 hol cyanuric chloride and 2 hol 4- Amino -4'-oxy - 1,

  1'-azobenzene-3'-carboxylic acid can act on each other in such a way that the diazo compound intervenes in the & position of the naphtha linker, and the cyanuric chloride combines the amino group of the naphthalene derivative and those of the two aminoazo dyes to form a ternary triazine condensation product.



  The new dye is a dark blue powder and dyes cotton in a weakly alkaline bath to which a copper salt solution of copper sulfate and acidic sodium has been added in washable, lightfast orange-brown tones.



  <I> Example: </I> 20.6 parts by weight of 1-amino-4,6-dichlorobenzene-2-carboxylic acid are heated to 40 in 200 parts by weight of water, 27 parts by weight of concentrated hydrochloric acid are added, with ice to 5 cooled and diazotized with 6.9 parts by weight of sodium nitrite. The clear diazo solution is mixed with $ 2.1 parts by weight of the triazine product prepared in a known manner from 1 part of cyanuric chloride, 1 part of 2-amino-5-oxynaphthalene-7-sulfonic acid,

      and 2 hol 4-amino-4'-oxy-1,1'-azobenzene-3'-carboxylic acid, which was dissolved in 1200 parts of water with the addition of 60 parts by weight of sodium carbonate, coupled. The mixture is stirred for a few hours and the dyestuff formed is precipitated with sodium chloride.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Polyazofarbstoffes, dadurch gekennzeichnet, dass man 1 Hol diazotierte 1-Amino-4,6-di- chlorbenzol-2-carbonsäure, 1 Hol 2-Amino- 5-oxynaphthalin-7-sulfonsäure, 1 Hol Cyanur- chlorid und 2 Hol 4-Amino-4'-oxy-1,1'-azo- benzol-3'-carbonsäure derart aufeinander ein wirken lässt, PATENT CLAIM: Process for the production of a new polyazo dye, characterized in that 1 hol diazotized 1-amino-4,6-dichlorobenzene-2-carboxylic acid, 1 hol 2-amino-5-oxynaphthalene-7-sulfonic acid, 1 hol cyanuric acid - lets chloride and 2 hol 4-amino-4'-oxy-1,1'-azobenzene-3'-carboxylic acid act on each other dass die Diazoverbindung in 6- Stellung des Naphthalinkerns eingreift, und das Cyanurchlorid die Aminogruppe des ilaphthalinderivates und diejenigen der bei den Aminoazofarbstoffe unter Bildung eines Lernären T'riazinkondensationsproduktes ver einigt. that the diazo compound intervenes in the 6-position of the naphthalene nucleus, and the cyanuric chloride unites the amino group of the ilaphthalene derivative and those of the aminoazo dyes with the formation of a learner triazine condensation product. Der neue Farbstoff stellt ein dunkel braunes Pulver dar und färbt Baumwolle in schwach alkalischem Bade, das mit einer Kupfersalzlösung aus Kupfersulfat und wein saurem Natrium versetzt wurde, in wasch- und lichtechten orangebraunen Tönen an. The new dye is a dark brown powder and dyes cotton in a weakly alkaline bath to which a copper salt solution of copper sulfate and acidic sodium has been added in washable and lightfast orange-brown shades.
CH239343D 1943-06-25 1943-06-25 Process for the preparation of a new polyazo dye. CH239343A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH239343T 1943-06-25
CH237397T 1943-06-25

Publications (1)

Publication Number Publication Date
CH239343A true CH239343A (en) 1945-09-30

Family

ID=25728254

Family Applications (1)

Application Number Title Priority Date Filing Date
CH239343D CH239343A (en) 1943-06-25 1943-06-25 Process for the preparation of a new polyazo dye.

Country Status (1)

Country Link
CH (1) CH239343A (en)

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